I came across this French paper over the weekend, while I was at the gym pretending to work out my legs. It is a fascinating look at the evolution of Parisian urbanism from 1600-1902, including how the city's height limits have changed over the centuries. Here, for example, are two section diagrams showing the allowable building envelopes for both an 8 meter street and a 10 meter street:
The way to read these is to start at the bottom with the width of the right-of-way ("voie"). As you move up, it then gives you the allowable heights for various dates. So for example, in 1667, the allowable building height for a 10 meter street was 15.60m. After this height, there was then a requirement to stepback following a 45 degree angular plane. Or in some cases, following a certain radius:
We don't have a ton of 8 and 10-meter wide streets here in Toronto, but there are obvious similarities between what is shown here and what is in our mid-rise design guidelines. Of course, the big difference is that we're mostly zoned for low-rises houses and Paris is not. This broader context matters a great deal and it's why I keep asking: Are you sure you want Parisian-style urbanism?
I just stumbled upon the above project. It’s in Portland. It’s called Slate. It’s 147,000 sf. It sits on a 100′ x 200′ site. It was completed last year. And it was developed by Beam Development and Urban Development Partners.
Besides having two very cool facades (the east and west facades are the ones that push and pull), I was surprised to see the building clad in unitized curtain wall (as well as composite metal panel). That kind of glazing comes at a premium and this is not a large building. I’m curious about the numbers.
It’s also a post-tensioned concrete building, which is uncommon in the Toronto market.
Here’s a close-up of the facade:
Also noteworthy is the fact that I’m fairly certain the architects inserted a couple having sex in one of their renderings:
For those of you who did not attend architecture school, there’s a fairly long tradition of hiding “easter eggs” within your renderings. Or at least that was the case when I was in school.
On that note, happy Easter weekend all.
All images via Works Progress Architecture (W.PA). Photography by Joshua Jay Elliott.